thats more like it,now before hand,your condensation problem,have you ever used the rubber coat ,like used for spray in bed liner?
im asking because when i was hunting ,id load a camper shell on truck and that was bed,fiberglass shell all it is,but condenstaion would drench ever damn thing,so went to napa and got a few cans of the rubber coating that you use under your vehicle to stop rust,ive always called it zbar,not sure what it is called these day,car manufactures used it many years off the assy line.
buying in bulk i would suggest looking a lizard skin,shit is tough as nails and has several steps depending on what your application is,they have a sound deadner ceramic coating and just plain lizard skin,i dont think you would need anything other than just plain jane lizard skin,there are several other companies that have got into the competior thing with them so shop around all of it is the same,spray your steel,condensation done ,then build your walls,i mentioned when you were doing the walls before if you had ,you never answered,but the spray in foam,it might be cheaper but i would sure run something in there long ways ,were it would breath threw the middle as well as under, anyway i wouldnt buy any thing else to you solve the condensation problem,as far as condensation on floors,there is channeling you could do,or you could just used treated lumber and build a sub floor,
a lot of that would go away if you could fade down the sides of building were your steel is above ground level,i had a slope on a building one time ,every 2 years had to get a dozer out and dig that bitch down mit would flood the whole building,finally i had it dug down were i ran a french drain down the whole side and then went back in and build a retaning wall,problem solved.
just a few thing i wanted to throw around in your head,i sure wouldnt give up the idea of not growing indoors though,you can do both and timed just right a perpetiual garden falling into the winter will still keep you rolling when you cant outside if you dig
